Account Elevated to New Role
Id | c1c66f0b-5531-4a3e-a619-9d2f770ef730 |
Rulename | Account Elevated to New Role |
Description | Detects an account that is elevated to a new role where that account has not had that role in the last 14 days. Role elevations are a key mechanism for gaining permissions, monitoring which users have which roles, and for anomalies in those roles is useful for finding suspicious activity. Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#changes-to-privileged-accounts |
Severity | Medium |
Tactics | Persistence |
Techniques | T1078.004 |
Required data connectors | AzureActiveDirectory |
Kind | Scheduled |
Query frequency | 1d |
Query period | 14d |
Trigger threshold | 0 |
Trigger operator | gt |
Source Uri | https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Business Email Compromise - Financial Fraud/Analytic Rules/AccountElevatedtoNewRole.yaml |
Version | 1.1.2 |
Arm template | c1c66f0b-5531-4a3e-a619-9d2f770ef730.json |
let auditList =
AuditLogs
| where TimeGenerated >= ago(14d)
| where OperationName =~ "Add member to role completed (PIM activation)"
| where Result =~ "success"
| extend TargetUserPrincipalName = tostring(TargetResources[2].userPrincipalName)
| extend displayName = tostring(TargetResources[0].displayName)
| extend displayName2 = tostring(TargetResources[3].displayName)
| extend ElevatedRole = iif(displayName =~ "Member", displayName2, displayName)
;
let lookbackList = auditList
| where TimeGenerated between(ago(14d)..ago(1d))
;
let recentList = auditList
| where TimeGenerated > ago(1d)
;
let newlyElevated = recentList
| join kind = leftanti lookbackList on ElevatedRole, TargetUserPrincipalName
;
newlyElevated | project Id, AdditionalDetails
| mv-expand bagexpansion=array AdditionalDetails
| evaluate bag_unpack(AdditionalDetails)
| extend key = column_ifexists("key", ''), value = column_ifexists("value", '')
| evaluate pivot(key, make_set(value))
| extend ipaddr = todynamic(column_ifexists("ipaddr", ""))
| mv-expand ipaddr
| project Id, InitiatingIPAddress = tostring(ipaddr)
| join kind=rightouter newlyElevated on Id
| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
| extend InitiatingIPAddress = iff(isnotempty(tostring(InitiatedBy.user.ipAddress)), tostring(InitiatedBy.user.ipAddress), InitiatingIPAddress)
| extend ElevatedBy = iff(isnotempty(InitiatingUserPrincipalName), InitiatingUserPrincipalName, InitiatingAppName)
| extend ElevatedUser = TargetUserPrincipalName
| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
| extend TargetAccountName = tostring(split(TargetUserPrincipalName, "@")[0]), TargetAccountUPNSuffix = tostring(split(TargetUserPrincipalName, "@")[1])
| project-reorder ElevatedUser, ElevatedRole, ResultReason, ElevatedBy, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, TargetUserPrincipalName
description: |
'Detects an account that is elevated to a new role where that account has not had that role in the last 14 days.
Role elevations are a key mechanism for gaining permissions, monitoring which users have which roles, and for anomalies in those roles is useful for finding suspicious activity.
Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#changes-to-privileged-accounts'
tags:
- AADSecOpsGuide
queryPeriod: 14d
name: Account Elevated to New Role
triggerThreshold: 0
tactics:
- Persistence
severity: Medium
kind: Scheduled
entityMappings:
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: InitiatingUserPrincipalName
- identifier: Name
columnName: InitiatingAccountName
- identifier: UPNSuffix
columnName: InitiatingAccountUPNSuffix
- entityType: Account
fieldMappings:
- identifier: AadUserId
columnName: InitiatingAadUserId
- entityType: Account
fieldMappings:
- identifier: FullName
columnName: TargetUserPrincipalName
- identifier: Name
columnName: TargetAccountName
- identifier: UPNSuffix
columnName: TargetAccountUPNSuffix
- entityType: IP
fieldMappings:
- identifier: Address
columnName: InitiatingIPAddress
queryFrequency: 1d
triggerOperator: gt
id: c1c66f0b-5531-4a3e-a619-9d2f770ef730
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Business Email Compromise - Financial Fraud/Analytic Rules/AccountElevatedtoNewRole.yaml
version: 1.1.2
query: |
let auditList =
AuditLogs
| where TimeGenerated >= ago(14d)
| where OperationName =~ "Add member to role completed (PIM activation)"
| where Result =~ "success"
| extend TargetUserPrincipalName = tostring(TargetResources[2].userPrincipalName)
| extend displayName = tostring(TargetResources[0].displayName)
| extend displayName2 = tostring(TargetResources[3].displayName)
| extend ElevatedRole = iif(displayName =~ "Member", displayName2, displayName)
;
let lookbackList = auditList
| where TimeGenerated between(ago(14d)..ago(1d))
;
let recentList = auditList
| where TimeGenerated > ago(1d)
;
let newlyElevated = recentList
| join kind = leftanti lookbackList on ElevatedRole, TargetUserPrincipalName
;
newlyElevated | project Id, AdditionalDetails
| mv-expand bagexpansion=array AdditionalDetails
| evaluate bag_unpack(AdditionalDetails)
| extend key = column_ifexists("key", ''), value = column_ifexists("value", '')
| evaluate pivot(key, make_set(value))
| extend ipaddr = todynamic(column_ifexists("ipaddr", ""))
| mv-expand ipaddr
| project Id, InitiatingIPAddress = tostring(ipaddr)
| join kind=rightouter newlyElevated on Id
| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)
| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)
| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)
| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)
| extend InitiatingIPAddress = iff(isnotempty(tostring(InitiatedBy.user.ipAddress)), tostring(InitiatedBy.user.ipAddress), InitiatingIPAddress)
| extend ElevatedBy = iff(isnotempty(InitiatingUserPrincipalName), InitiatingUserPrincipalName, InitiatingAppName)
| extend ElevatedUser = TargetUserPrincipalName
| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, "@")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, "@")[1])
| extend TargetAccountName = tostring(split(TargetUserPrincipalName, "@")[0]), TargetAccountUPNSuffix = tostring(split(TargetUserPrincipalName, "@")[1])
| project-reorder ElevatedUser, ElevatedRole, ResultReason, ElevatedBy, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, TargetUserPrincipalName
requiredDataConnectors:
- connectorId: AzureActiveDirectory
dataTypes:
- AuditLogs
relevantTechniques:
- T1078.004
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"workspace": {
"type": "String"
}
},
"resources": [
{
"apiVersion": "2024-01-01-preview",
"id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/c1c66f0b-5531-4a3e-a619-9d2f770ef730')]",
"kind": "Scheduled",
"name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/c1c66f0b-5531-4a3e-a619-9d2f770ef730')]",
"properties": {
"alertRuleTemplateName": "c1c66f0b-5531-4a3e-a619-9d2f770ef730",
"customDetails": null,
"description": "'Detects an account that is elevated to a new role where that account has not had that role in the last 14 days.\n Role elevations are a key mechanism for gaining permissions, monitoring which users have which roles, and for anomalies in those roles is useful for finding suspicious activity.\n Ref: https://docs.microsoft.com/azure/active-directory/fundamentals/security-operations-privileged-accounts#changes-to-privileged-accounts'\n",
"displayName": "Account Elevated to New Role",
"enabled": true,
"entityMappings": [
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingUserPrincipalName",
"identifier": "FullName"
},
{
"columnName": "InitiatingAccountName",
"identifier": "Name"
},
{
"columnName": "InitiatingAccountUPNSuffix",
"identifier": "UPNSuffix"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "InitiatingAadUserId",
"identifier": "AadUserId"
}
]
},
{
"entityType": "Account",
"fieldMappings": [
{
"columnName": "TargetUserPrincipalName",
"identifier": "FullName"
},
{
"columnName": "TargetAccountName",
"identifier": "Name"
},
{
"columnName": "TargetAccountUPNSuffix",
"identifier": "UPNSuffix"
}
]
},
{
"entityType": "IP",
"fieldMappings": [
{
"columnName": "InitiatingIPAddress",
"identifier": "Address"
}
]
}
],
"OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Business Email Compromise - Financial Fraud/Analytic Rules/AccountElevatedtoNewRole.yaml",
"query": "let auditList =\nAuditLogs\n| where TimeGenerated >= ago(14d)\n| where OperationName =~ \"Add member to role completed (PIM activation)\"\n| where Result =~ \"success\"\n| extend TargetUserPrincipalName = tostring(TargetResources[2].userPrincipalName)\n| extend displayName = tostring(TargetResources[0].displayName)\n| extend displayName2 = tostring(TargetResources[3].displayName)\n| extend ElevatedRole = iif(displayName =~ \"Member\", displayName2, displayName)\n;\nlet lookbackList = auditList\n| where TimeGenerated between(ago(14d)..ago(1d))\n;\nlet recentList = auditList\n| where TimeGenerated > ago(1d)\n;\nlet newlyElevated = recentList\n| join kind = leftanti lookbackList on ElevatedRole, TargetUserPrincipalName\n;\nnewlyElevated | project Id, AdditionalDetails\n| mv-expand bagexpansion=array AdditionalDetails\n| evaluate bag_unpack(AdditionalDetails)\n| extend key = column_ifexists(\"key\", ''), value = column_ifexists(\"value\", '')\n| evaluate pivot(key, make_set(value))\n| extend ipaddr = todynamic(column_ifexists(\"ipaddr\", \"\"))\n| mv-expand ipaddr\n| project Id, InitiatingIPAddress = tostring(ipaddr)\n| join kind=rightouter newlyElevated on Id\n| extend InitiatingAppName = tostring(InitiatedBy.app.displayName)\n| extend InitiatingAppServicePrincipalId = tostring(InitiatedBy.app.servicePrincipalId)\n| extend InitiatingUserPrincipalName = tostring(InitiatedBy.user.userPrincipalName)\n| extend InitiatingAadUserId = tostring(InitiatedBy.user.id)\n| extend InitiatingIPAddress = iff(isnotempty(tostring(InitiatedBy.user.ipAddress)), tostring(InitiatedBy.user.ipAddress), InitiatingIPAddress)\n| extend ElevatedBy = iff(isnotempty(InitiatingUserPrincipalName), InitiatingUserPrincipalName, InitiatingAppName)\n| extend ElevatedUser = TargetUserPrincipalName\n| extend InitiatingAccountName = tostring(split(InitiatingUserPrincipalName, \"@\")[0]), InitiatingAccountUPNSuffix = tostring(split(InitiatingUserPrincipalName, \"@\")[1])\n| extend TargetAccountName = tostring(split(TargetUserPrincipalName, \"@\")[0]), TargetAccountUPNSuffix = tostring(split(TargetUserPrincipalName, \"@\")[1])\n| project-reorder ElevatedUser, ElevatedRole, ResultReason, ElevatedBy, InitiatingUserPrincipalName, InitiatingAadUserId, InitiatingIPAddress, TargetUserPrincipalName\n",
"queryFrequency": "P1D",
"queryPeriod": "P14D",
"severity": "Medium",
"subTechniques": [
"T1078.004"
],
"suppressionDuration": "PT1H",
"suppressionEnabled": false,
"tactics": [
"Persistence"
],
"tags": [
"AADSecOpsGuide"
],
"techniques": [
"T1078"
],
"templateVersion": "1.1.2",
"triggerOperator": "GreaterThan",
"triggerThreshold": 0
},
"type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
}
]
}